Furnace stoker



March 19, 1929. H. sY'Dpw 91,705,548

FURNACE sToKER y Filed March 28, 1928 j. if

' HI III H7- TORNEY Patented Mar. ie, .1929. l

narran erg-Atras i "titans HEB-MANN sYnow, oFvsT. Louis, MISSOURI.

FURNACE sToKER.

Application led March 28, 1928. Serial No. 265,376.

My invention relates to stokers, and especially to stokcrs used with domestic furnaces.

The primary .object of my invention is to provide a stoker that will discharge fuel into the front part of the fire.

^ Another object of my invention is to provide a Stoker that can be filledv with a vsuflicientamount of fuel to last for raday or so, so that when it is necessary to replenish the lire, it can be done with the greatest ease and certainty, by even an unexperienced person, without permitting the emission of smoke through the furnace door. y

Other objects and advantages of my invention will be disclosed in the specification, claim and drawings, in which:

1 is a longitudinal section of a part of a furnace, showing my stoker attached and the stoker bin filled with coal.

Fig. 2 is a like view, showing the coal being discharged into the front part of the fire.

Fig. 3 is a side elevation of a stoker attached to the furnace. i

Fig. 4 is an end elevation of a stoker attached to the furnace.

Fig. 5 is a plan view, showing a broken portion of a furnace with my stoker attached and the furnace door open. v

In cities where bituminous coal is chiefly used for domestic heating purposes, smoke abatement leagues are organized to teach ythe people the best mode of firing a furnace to prevent smoke, and one of the Ychief instructions that is insisted upon is that the raw coal be fed into the front. part of the furnace, the live coals being pushed to the back of the furnace.

In order that the instructions of the smoke abatement committees can be more certainly and more easily carried out, I have devised a stoker which makes it practically impossible to discharge the coal over the entire surface of the lire and insures it being deposited in the front part of the furnace.

Without the proper adjustment of the drafts on the modernV domestic furnace, when the fuel door is opened to replenish the lire, a large volume of smoke is emitted through the opendoor, and to overcome this objection ,my stoker is provided with an yautomatic door or curtain which closes the opening into the furnace at all times. l v

rIlhe preferred form of my stokerconsists l of a fuel hopper 1 made of suitable "sheet,55 metal, closed on two sides, open at its inner end 2 and partly open at its outer end 3. The fuel hopper 1 is supported at adjustable heights, to suit different types of furnaces,

by two legs 4 and 5, preferably made of angle 60 iron, each with an extension 7 of the same material, provided withl aslot 8 to engage a bolt for thev purpose of adjusting the length of the legs tothe height of the furnace.

The inner end 2 of the stoker is provided 65 with a downwardly turned flange 10 which regulates the depth the stoker is inserted through the furnace door. v Y

A curtain 11 is pivotally joined tothe body of the stoker at 12 and completely fills the 70 fuel opening into the furnace, so that when the stoker hopper becomes emptythe curtain 11`performs the same function as a furnace door; and as the coal is being forced into the furnace, the curtainll-prevents egress of smoke from the furnace.V 1

A slidableshovel 13,-of rectangular crosssection, adapted'to lit loosely withinv the hopper of the stoker, is provided with a handle 14 pivotally joined at 15, so that when v80 v the shovel is withdrawn to its outward limit,

the handle drops down out of the way as shown in Fig. 4.

It is obvious that if the hopper is filled with coal in the morning, a woman or child inexperienced in firing a furnace can operate my stoker by simply pushing the shovel 13 towards. the furnace discharging the coal into the front part of thefire, without any emissionv of smoke and liwith'no vattention .90 whatever to the drafts. v

Another incidental advantage of my 'construction is that during the summer months Athe stoker may be removed toa place of safety and convenience.

Having fully described my invention, what I claim as new and useful and desire to protect by Letters vPatent is v Y A furnace stoker of the class described,v

lconsisting of a rectangular fuel hopper having a closed `bottom and vertical side walls, an open top and an open inner end, a' swingable metal door pvotally attached to said vertical side Walls adapted to automateally`k Close thev door opening, a slidable shovel adapted to loosely ft Within said fuel hopper, a handle pivotally attached to said slidable shovel,y adjustable legsladapted to support the outer end of said Stoker on -a level With the door of a furnace, mea-ns for pre- Y Venting the insertion of said hopper too far into a `furnace. f

In Witness whereof I have hereunto afxed my signature this 19th day of March, 1928.

HRMANN esyenow. 

